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3 years ago

10

How many diagonals will a decaoctagon have?

1 answer:

docker41 [41]3 years ago

6 0

If you draw an octagon (eight-sided polygon), select one vertex and construct each diagonal from this vertex, you will see there are 5 such diagonals. Thus, for each of the 8 vertices you can draw 5 diagonals and hence there can be 5 × 8 = 40 diagonals.

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Seven workers are hired to seed a field by hand. Each is given a plot which is 6x12 feet in size. What is the total area of the

Reil [10]

6 times 12= 72. 72 times 7= 504. 504 square ft.

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4 years ago

Complete the input-output table for the function y = 3^x

Archy [21]

Answer:

x y

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Step-by-step explanation:

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3 years ago

What is the value of the expression when x=10?<br><br> 5|8-x|

Contact [7]

5|8-x|

5|8-10|
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7 0

3 years ago

Read 2 more answers

A 10 inch cookie cake is divided into 8 slices. What is the area of 3 slices

brilliants [131]

Answer:

The area of 3 slices is $\frac{75}{8}\pi\ in^2$ or approximate $29.4\ in^2$

Step-by-step explanation:

<em>Find out the area of the cookie cake</em>

The area of the circle (cookie cake) is

$A=\pi r^{2}$

we have

$r=10/2=5\ in$ ----> the radius is half the diameter

substitute

$A=\pi (5)^{2}$

$A=25\pi\ in^{2}$

Remember that the area of the complete cookie cake subtends a central angle of 360 degrees

If the cake is divided into 8 slices

then

The central angle of each slice is equal to

360/8=45°

The central angle of 3 slices is equal to

3(45°)=135°

By proportion

Find out the area of 3 slices

Let

x ----> the area of 3 slices

$\frac{25\pi}{360}=\frac{x}{135}\\\\x=25\pi(135)/360\\\\x=\frac{3,375}{360}\pi\ in^2$

Simplify

$\frac{75}{8}\pi\ in^2$ ----> exact value of the area of 3 slices

Find out the approximate value of the area of 3 slices

assume

$\pi =3.14$

substitute

$\frac{75}{8}(3.14)=29.4\ in^2$

5 0

4 years ago

A rectangular prism with a volume of 444 cubic units is filled with cubes with side lengths of \dfrac13

IrinaK [193]

Answer:

108 cubes

Step-by-step explanation:

Lengths of one of the cube s= $\dfrac{1}{3}$

Volume of a Cube $=s^3$

Volume of one of the Cubes $=(\dfrac{1}{3})^3=\dfrac{1}{27}$

The volume of the rectangular prism is 4 cubic units.

Therefore, to find the number of cubes it takes to fill the prism, we divide the volume of the prism by the volume of the cube.

$\text{Volume of Prism/Volume of Cube}=4 \div \dfrac{1}{27}\\=4 X 27 \\=108$

It takes 108 cubes to fill the rectangular prism.

8 0

4 years ago

Read 2 more answers